So Technically Burkett's condition is not Schizophrenia-- it just looks like it.

This web site discusses physical conditions which imitate schizophrenia. Burkett's own history ( seizures and encephalitis) shows physical history consistent with disease caused schizophrenic like conditions.

Schizophrenia.com - Misdiagnosis of Schizophrenia, Paranoid Schizophrenia: "Medical or neurological Substance-induced psychotic disorder, especially amphetamines, alcohol hallucinosis, anticholinergic, barbiturate withdrawal, belladonna alkaloids, cimetidine, cocaine, digitalis, disulfiram, hallucinogens, L-dopa, phencyclidine (PCP) Epilepsy, especially of temporal lobe origin Tumors, expecially frontal or limbin CNS infections, especially herpes encephalitis, Creuzfeldt-Jacob disease, neurosyphilis, AIDS Acute intermittent porphyia Dementia of the Alzheimer's type B12 deficiency Carbon monoxide poisoning Endocrinopathies, aspecially adrenal and thyroid Fabry's disease Fahr's syndrome Hallervorden-Spatz disease Heavy metal poisoning (arsenic, manganese, mercury, thallium) Homocystinuria Huntington's disease Metachromatic leukodystrophy Normal-preassure hydrocephalus Pellagra Pick's disease Systemic lupus erythematosus Wernicke-Korsakoff syndrome Wilson's disease


Psychiatric Malingering Factitious disorder with predominantly psychologicl symptoms Autistic disorder Schizophrenia Schizophreniform disorder Brief psychotic disorder Mood disorder Schizoaffective disorder Psychotic disorder NOS (atypical psychosis) Delusional disorder Personality disorder, especially schizotypal, schizoid, borderline, paranoid Obsessive-compulsive disorder


Diseases and Disorders that Imitate Schizophrenia


Brain Injury or Disease Embolism Aqueductal stenosis Ischemia Trauma Tumor Epilepsy Encephalitis Narcolepsy Obstructive hydrocephalus Cerebrovascular infarction Neoplasms


Metabolic or Systemic Disorders Vitamin B12 deficiency Acquired immune deficiency system Syphilis Tuberculous meningitis Pellagra Hypoglycemia Hepatic encephalopathy Hyperthyroidism Lead poisoning Lupus erythematosus Multiple sclerosis Uremia Cotard's syndrome Herpetic encephalitis Cysticerosis Cushing's disease


Genetic or Chromosomal Disorders XXY karyotype (Klinefelter's syndrome) XO karyotype (Turner's or Noonan's syndrome) 18q- deletion (missing piece of long arm of chromosome 18) 5, q11-q13 triplication Huntington's disease Acute intermittent porphyria Metachromatic leukodystrophy Familial basal ganglia calcification Homocystinuria Phenylketonuria Wilson's diseas Albinism Congenital adrenal hyperplasia Glucose-6-phosphate dehydrogenase deficiency (favism) Kartagener's syndrome


DSM-IV Diagnostic Critera for Psychotic Disorder Due to a General Medical Condition


A. Prominent hallucinations or delusions.
B. There is evidence from the history, physical examination, or laboratory findings that the disturbance is the direct physiological consequence of a general medical condition.
C. The disturbance is not better accounted for by another mental disorder.
D. The disturbance does not occur exclusively during the course of a delirium. Code based on predominant symptom: With delusions: if delusions are the predominant symptom With hellucinations: if hallucinations are the predominant symptom

Coding note: Include the name of the general medical condition on Axis I, e.g., psychotic disorder due to"